有如下程序: #include<iostream> using namespace std; class TestClass public; ~TestClass ()cout<< BASE:; ; class TestClass1:public TestClass public: ~TestClass 1 ()cout<< DERIVED ; ; int main()TestClass1 x;return 0; 执行后的输出结果是( )。
A.BASE
B.DERIVED
C.BASEDERIVED
D.DERIVEDBASE